<?php
    /*
        url='login.php';
        login.php?act=xxx&user=xxx&pass=xxx&phone=xxx&num=xxx;

        return a+b;
    */
    $act=$_POST['act'];
    $user=$_POST['user'];
    $pass=$_POST['pass'];
    $phone=$_POST['phone'];
    $num=$_POST['num'];

    echo $act+$user+$pass+$phone+$num;
?>